Hire the best freelance Electronics Design expert designers for your company

Electrical Engineering Professional with over 3 decades of experience in the System-Level Architecture and Design of Radio Frequency (RF / Microwave / mmWave), Power Conversion (Linear and SMPS), Anal... Read more

Electrical Engineering Professional with over 3 decades of experience in the System-Level Architecture and Design of Radio Frequency (RF / Microwave / mmWave), Power Conversion (Linear and SMPS), Analog Mixed-Signal, Quantization and Linearization, Phase Lock Loops (PLLs) and Servo Control Systems, Motion-Control (Robotics), Digital Logic (FPGAs) and State Machines, Embedded (MCU, CPU, GPU, DSP, SoC), Electro-Magnetics (EMC), Electro-Optical (Video delivery, Displays, High Resolution Visible / IR / UV Cameras), and Electro-Mechanical disciplines for Space, Aerospace, Military, Defense, Aviation (Avionics), Medical, Marine, Automotive, Locomotive, Transportation, Industrial, Consumer, Wearables, Commercial, High Performance Computing, Data Communications, LAN/SAN/WAN, Telecommunication, Wireless Charging & IoT Sensors, Radio, Broadcast, and Motion Picture industries

-----: About Us – NextGen IoT Lab:----- We are a multidisciplinary engineering and technology development team with a strong foundation in mechanical design, industrial CAD modeling, and IoT soluti... Read more

-----: About Us – NextGen IoT Lab:----- We are a multidisciplinary engineering and technology development team with a strong foundation in mechanical design, industrial CAD modeling, and IoT solutions. With nearly a decade of hands-on experience in mechanical and industrial design, combined with over 12 years of expertise in IoT and software development, we bring together a rare blend of skills that enable us to deliver end-to-end product design and development solutions. Mechanical Design Expertise: Our team has extensive experience in 3D modeling and industrial CAD design, leveraging advanced tools such as AutoCAD, Fusion 360, SolidWorks, and other CAD software. From concept to production, we create high-precision, manufacturing-ready designs tailored to client specifications. Our in-depth understanding of manufacturing design principles ensures that each model is both functional and optimized for real-world applications. IoT and Electronics Development: Over the years, we have successfully executed more than 250 projects, ranging from basic PCB designs to complex IoT and embedded systems. We specialize in: Electronics & PCB Design: Circuit design, PCB development, amplifiers, filters, analog/digital electronics. Embedded Systems & Firmware: Microcontroller-based solutions, Arduino, ESP32, LoRaWAN devices, and custom firmware development. Connectivity & Protocols: Wi-Fi, Bluetooth, BLE, RF, High-Speed RF (2.4 GHz), LoRa, LoRaWAN, TTN, Chirpstack, Node-RED, MQTT, HTTP, and webserver integration. Software Development Capabilities: Our proficiency extends beyond hardware into software engineering, enabling us to design and develop scalable applications, control systems, and dashboards. We are skilled in a wide range of programming languages and frameworks, including Python, C++, React, Node.js, Angular, and PHP. This versatility allows us to provide integrated hardware-software ecosystems for industries such as manufacturing, automation, energy, smart devices, and more. Our Commitment: As a TOP-RATED team with all 5-star reviews, we pride ourselves on delivering high-quality, reliable, and innovative solutions. By uniting mechanical engineering, electronics design, and software development, we provide our clients with a one-stop solution for product development—from initial concept and prototyping to final deployment. Our mission is to help businesses and innovators bring their ideas to life with precision, creativity, and technical excellence.

I'm electronic engineer specialized in high perfomance PCB design and embedded programming. I have fifteen years of experience in PCB designs for high performance boards. The last four and half yea... Read more

I'm electronic engineer specialized in high perfomance PCB design and embedded programming. I have fifteen years of experience in PCB designs for high performance boards. The last four and half years I was working in naval equipment design as echosounders and autopilots applying rigurous EMI standards. In my portfolio you can find pictures of same of my works. I know how mix digital microcontrolers, small signal conditionning and high power in same board without interfering. I use design rules recomended for manufacturers as Analog Devices, Texas Instruments, ST, etc. I have a knowlegments in net sensors area and PCB design for RF applications (2.4GHz) like Zigbee, Bluethoot and WiFi. I can work by tasks or for hour, like you prefer.

I am an Electrical and Electronics Engineer with experience in electrical system design, circuit analysis, and engineering documentation. I am proficient in SolidWorks, Proteus, and EPLAN, with the ab... Read more

I am an Electrical and Electronics Engineer with experience in electrical system design, circuit analysis, and engineering documentation. I am proficient in SolidWorks, Proteus, and EPLAN, with the ability to develop electrical schematics, simulate circuits, create technical drawings, and support engineering design projects. I hold a Bachelor's degree in Electrical and Electronics Engineering and have over four years of professional experience solving technical challenges with accuracy and attention to detail. My expertise includes electrical design, PCB simulation, control systems, troubleshooting, and technical documentation. I am committed to delivering high-quality, reliable work on time while maintaining clear communication throughout every project. Whether you need electrical designs, circuit simulations, engineering drawings, or technical support, I am ready to help turn your ideas into practical solutions.

what people say about me: "Ruurd is next to a creative engineer a good communicator with new ideas and creative solutions. " I enjoy learning a lot about a topic and using it in the real world. In th... Read more

what people say about me: "Ruurd is next to a creative engineer a good communicator with new ideas and creative solutions. " I enjoy learning a lot about a topic and using it in the real world. In the last years I'm focused on sustable engineering. Wind turbines, solar propulsion and energy storage are my mean interests. Data collection and analysing is due to my practical know how a specialization.

Nijiworks do not present a new product. Working with your ideas, we design and manufacture ready for sale products. Professional Designers Our team has 15 years of experience and each member is ex... Read more

Nijiworks do not present a new product. Working with your ideas, we design and manufacture ready for sale products. Professional Designers Our team has 15 years of experience and each member is expert in his field. We are ready to present you an excellent designs in accordance with your ideas. Producable Product With the colloborative working of our designers, failure to produce of your designed product will be out. One of nijiworks objectives is to make low cost and producable product. 3D design and development We work through a new product design or improvement of your existing product. Protoype manufacturing We produce your existing product design or a prototype that has been designed by nijiworks. Mold design and manufacturing We prepare your metal or plastic products' mold design and propose an offer for mold manufacturing. Contract manufacturing We can actualise contract manufacturing of no mold requiring products with minimum cost. Nothing is impossible, just imagine !

I am an electronic engineer with a first class degree from the University of Southampton. I have worked on a range of projects from Unmanned Aerial Vehicles to electronic medical analysis devices. I... Read more

I am an electronic engineer with a first class degree from the University of Southampton. I have worked on a range of projects from Unmanned Aerial Vehicles to electronic medical analysis devices. I can assist with both hardware and embedded software design with a strong knowledge in embedded C and C++, this includes schematic design and layout design for PCBs, component choice and costings.

Senior electronic design engineer with 20+ years of experience and 100+ product designs delivered for clients in more than 15 countries. I take products from concept to production: architecture, schem... Read more

Senior electronic design engineer with 20+ years of experience and 100+ product designs delivered for clients in more than 15 countries. I take products from concept to production: architecture, schematic, PCB layout, firmware, prototype assembly and bench testing, all done by me. You work directly with the engineer who designs your board, with no handoffs between team members. WHAT I DESIGN - Precision analog and mixed-signal: isolated measurement front-ends, 24-bit RTD and sensor interfaces, bio-signal (ECG, EEG) acquisition, linear opto-isolated signal paths - RF and wireless: BLE, Wi-Fi, sub-GHz, LoRa, NB-IoT and LTE-M, RTK GNSS, NFC. Custom PCB antennas, simulated, then tuned and measured on the prototype - Power electronics: buck, boost, buck-boost, SEPIC, flyback, H-bridge and cascaded inverters, MPPT solar, Li-ion charging and protection, PoE (802.3at/bt) - Embedded and high-speed digital: STM32, nRF52, ESP32, i.MX with DDR, embedded Linux, 10-layer, HDI, flex, rigid-flex and stretchable PCBs - Firmware: C/C++ on bare metal and RTOS, ultra-low-power designs, motor control, DSP, bootloaders and firmware update systems SELECTED RESULTS - BLE wearable sensor running 14 months on a CR2450 coin cell - Isolated SCADA measurement board holding ±0.1% accuracy next to VFDs and motor starters - 3-channel TEC controller holding ±0.05 °C at setpoint - 10-layer i.MX industrial SBC with DDR, deployed in hazardous locations - Cascaded H-bridge inverter reaching 2 kV from stackable low-voltage modules - RTK GNSS/IMU tracker with under 3 cm accuracy in open sky IN-HOUSE LAB Prototypes are assembled and tested in my own lab: pick-and-place, reflow and JBC rework for assembly; oscilloscopes, spectrum analyzers, VNA with antenna pattern measurement, EMC pre-compliance, electronic loads, precision bench meters and thermal imaging for test (Keysight, Teledyne LeCroy, Tektronix, Fluke, FLIR, Pico). Designs are verified by measurement, not only by simulation. HOW I WORK - Clear requirements and an honest feasibility assessment before design starts - Designs ready for manufacturing, with parts in stock and second sources - Design for compliance (CE, FCC, IEC 61010, IEC 61000) and support through certification - Complete documentation and editable source files; you own everything - Long-term availability for revisions and production support TOOLS Altium Designer (primary), KiCad; Keysight ADS, Ansys, COMSOL; SolidWorks; Keil, IAR, GCC, ESP-IDF, STM32Cube. SOFTWARE I also write the software around the hardware: desktop and web tools in C#, Python and JavaScript for test fixtures, production programming and device configuration.

I have a very wide variety of skills including 3D design and drafting, embedded software design, PCB and circuit design, and time efficient prototyping to deliver a functional product.

I have a very wide variety of skills including 3D design and drafting, embedded software design, PCB and circuit design, and time efficient prototyping to deliver a functional product.

I am an experienced electronics design and development specialist with a strong hands-on background in circuit design, PCB layout, prototyping, testing, troubleshooting, and product development. My e... Read more

I am an experienced electronics design and development specialist with a strong hands-on background in circuit design, PCB layout, prototyping, testing, troubleshooting, and product development. My experience includes switch-mode power supplies, motor controls, analog and digital electronics, embedded systems, PCB design/layout, surface-mount electronics, and electronic test systems. I have previous professional experience with Altium Designer and currently work with Fusion 360 for mechanical CAD and electro-mechanical integration. I am particularly effective at troubleshooting difficult hardware problems and improving existing designs. My background includes developing power electronics, designing automated test equipment, building prototypes, performing board-level troubleshooting, and creating technical documentation and test procedures. I also develop ESP32-based embedded and IoT projects, including low-power wireless systems, sensors, and e-paper displays. I am available for PCB design and modification, electronics troubleshooting, prototype development, design review, testing, CAD/electromechanical integration, and technical documentation.

AUTODESK Certified, my passion and job are 3D design and electronics since 1987. Mechatronician, I invent and develop prototypes in various skills domains such as : mechanical, industrial and electron... Read more

AUTODESK Certified, my passion and job are 3D design and electronics since 1987. Mechatronician, I invent and develop prototypes in various skills domains such as : mechanical, industrial and electronics. I always create thinking about design and manufacturing cost, structural and physical constraints. I'm fast and efficient to always find the better solution. Others related hobbies are physics and mathematics which important in this business...  

I’m a product/industrial designer and engineer with a BA in Industrial Design (Universidad Autonoma Metropolitana, Mexico) and an MSc in Integrated Product Design (Delft University of Technology, The... Read more

I’m a product/industrial designer and engineer with a BA in Industrial Design (Universidad Autonoma Metropolitana, Mexico) and an MSc in Integrated Product Design (Delft University of Technology, The Netherlands). I have experience working in 4 different countries (UK, The Netherlands, India & Mexico). I like to work in projects that are exciting, challenging and meaningful. I don’t want to stagnate working in the same thing over and over. I like to be dynamic, always changing, staying out of my comfort zone. I learn fast and well, I’m adventurous, entrepreneurial, and trust my guts, I like to do, build, repair, tweak, mod, carve, mill, cut, sand, and of course create. I like technology, electronics, and software. I love sports, especially football. I love arts, especially music & films. I play & build electric guitars, and I love everything that has to do with it (amps, effects, accessories, etc.). I’m sociable, relaxed and playful, but serious and committed. I like long lasting relations with people. I am lucky to have a large and supportive network of people, many friends, and many best friends. I try to constantly increase my social circle. Contact me if you have a nice project, a challenging job, if you want some designer feedback, or simply to talk about design, technology, music, art, or anything you can think of.

Aleksandar M. @aleksandarm72 Senior Electronics,PCB and Graphic Designer $30 USD / Hour Senior Electronics Specialist | From Circuit Design to finished PCB ,GRAPHIC DESIGNER Are you looking for a sp... Read more

Aleksandar M. @aleksandarm72 Senior Electronics,PCB and Graphic Designer $30 USD / Hour Senior Electronics Specialist | From Circuit Design to finished PCB ,GRAPHIC DESIGNER Are you looking for a specialist who understands both design and manufacturing? I am an engineer who bridges the gap between a digital drawing and a finished physical product. With extensive experience in CAM software and hardware design, I provide reliable solution for clients and workshop owners. ELECTRONICS & PCB DESIGN: Using CadSoft Eagle Pro or Autodesk EAGLE (and on demand Altium designer and KiCad), I focus on creating robust electronic designs that are practical end economic to manufacture and service.Working on Arduino,esp32 or on high power and high voltage devices ,etc…digital on analog it doesn't matter. * Designing schematics and PCB. layouts for controllers, sensor interfaces, power units,high freq.devices ,etc.. or working by schematic from the customer * Preparing full manufacturing packages ready for PCB fabrication houses,including Gerber and Excellon files,BOM list and anything else on demand. * I understand electromagnetic interference (EMI) in everyday environments—a critical factor for electronics stability that many designers overlook. For over 25 years I have opportunity to work on countless projects and have seen all kind. of professional solutions from which I learn the best practices in PCB design so you will get the best possible schematic and PCB design. CNC EXPERTISE: I don’t just generate toolpaths; I optimize the entire production process. I consider your specific tooling, feed rates, and machine rigidity to ensure the best possible finish. GRAPHIC DESIGNER & SENIOR VISUAL DESIGNER Brand Identity & Technical Illustration Specialist Profile Overview: Your brand identity is the first thing your clients trust. I provide high-level visual solutions that combine 25 years of engineering precision with modern, minimalist design aesthetics. My goal is to deliver "production-ready" assets that work across all media—from favicons to billboards. What you will receive by partnering with me: • Strategic Logo Design: Professional, minimalist identities built on solid color theory (Specialist in Blue/Corporate palettes). • Marketing Assets: High-impact banners, posters, and social media kits designed for maximum engagement. • Technical Illustration: 100% manual vectoring (Adobe Illustrator) of complex machinery and exploded views. • Print-Ready Precision: Perfectly organized AI, EPS, and SVG files, ensuring zero issues during scaling or printing. Why my 25 years of experience matters: With over two decades in electromechanical and industrial design, I bring a "functional eye" to every project. I don't just draw; I ensure your visual materials communicate authority and professional stability

I'm Khaled, a mechanical engineer (B.Sc., University of Jordan) with 4+ years of hands-on digital fabrication experience. I model in Autodesk Fusion 360 and take designs from a sketch, photo or set of... Read more

I'm Khaled, a mechanical engineer (B.Sc., University of Jordan) with 4+ years of hands-on digital fabrication experience. I model in Autodesk Fusion 360 and take designs from a sketch, photo or set of measurements to a finished, manufacturable part. What I can do for you: - Parametric 3D CAD models of products, parts, enclosures and furniture - Fully dimensioned 2D technical drawings, exploded views and bills of materials - 3D-print-ready STL/STEP files with proper wall thickness, tolerances and print orientation - Simple mechanisms (cams, cranks, Geneva drives, sliders, folding mechanisms) with joints and motion studies - Arduino prototypes with wiring diagrams and tested code I've run a school fabrication lab with FDM 3D printers and a laser cutter, so I design with real manufacturing limits in mind, not just how the part looks on screen. I communicate clearly, share progress early, and revise until the design is right.

I am a skilled Mechanical Design Engineer, with more than 25 years of experience in the field of product development. I have worked as an independent consultant for the last 19 years, and I have worke... Read more

I am a skilled Mechanical Design Engineer, with more than 25 years of experience in the field of product development. I have worked as an independent consultant for the last 19 years, and I have worked in many different industries. As a Mechanical Design Engineer at leading Technologies Inc. I am certain I would make a valuable addition to your product development needs. I have worked in the following industries; • Medical industry. Designed surgery tools for orthopedics as well as dental implants. • Firearms industry. Designed firearms accessories for individuals and manufacturers. • Consumer Electronics. Designed handheld tablets, computer chassis and enclosures. • Military Simulators. Designed IMTS missile launcher trainers. • Structural Steel products. Designed roof structures for low income houses, table tops for machinery, industrial coffee roasting plant. • Auto Performance parts. Designed parts for high performance sports cars. • Household Products. Designed kitchen and bathroom products. In addition to my experience and personal qualities, I have a solid educational foundation and a passion for engineering and mechanical designing. Please review my Linkedin profile for further details. Thank you for your time and consideration. Sincerely, Alex Atala

10+ years 2D-3D Mechanical Design and Rendering, Multiphysics Simulations, Programming Language, Electronic PCB Layout, Acoustic solutions.

10+ years 2D-3D Mechanical Design and Rendering, Multiphysics Simulations, Programming Language, Electronic PCB Layout, Acoustic solutions.

PCB designer with a background in industrial automation and embedded systems. I specialize in turning client requirements into manufacturable hardware efficiently, whether that's a new design from scr... Read more

PCB designer with a background in industrial automation and embedded systems. I specialize in turning client requirements into manufacturable hardware efficiently, whether that's a new design from scratch or a fast, precise fix to something already built. I work independently across the full process: scoping the requirement, schematic design, layout, and staying in clear communication with the client throughout. I'd rather ask a clarifying question upfront than guess and have to redo work later. If you need a board designed or an existing one fixed fast, happy to take a look.

Need a PCB that passes DRC the first time and is ready to order from JLCPCB? I design 2- and 4-layer boards and write the ESP32/STM32 firmware that runs on them, so you work with one engineer from sch... Read more

Need a PCB that passes DRC the first time and is ready to order from JLCPCB? I design 2- and 4-layer boards and write the ESP32/STM32 firmware that runs on them, so you work with one engineer from schematic to working prototype. What I can do for you: - Schematic capture and PCB layout in KiCad, EasyEDA or Altium Designer (2 and 4 layers) - Custom symbols and footprints from datasheets - Manufacturing files: Gerber, drill, BOM and pick-and-place for JLCPCB or PCBWay - PCB review and DFM check before you order - Breadboard or Arduino prototype to a custom PCB - 3D board model (STEP) for your enclosure design - ESP32 and STM32 firmware in C/C++ (FreeRTOS, PlatformIO, STM32CubeIDE) - LTspice simulation of power and analog circuits Recent work: - Round 4-layer ESP32-S3 health smartwatch board (PPG, skin temperature, IMU, LiPo charging, haptics) with 0 DRC errors - Curved 4-layer wearable alarm-band PCB delivered to a client with Gerbers, BOM, pick-and-place, schematic PDF and a 3D enclosure model - USB-C PD multi-channel power board with STM32 control and current sensing - STM32 line-follower robot whose main PCB doubles as the chassis (Champion, Auto Grand Prix V6.0) I am a final-year EEE student at Shahjalal University of Science and Technology, an EasyEDA Official Certified Campus Ambassador and an IEEE EICT 2025 co-author. Send me your schematic, sketch or idea and I will tell you the layer count, timeline and cost.

Mechatronics Engineer and Electronics Engineer (dual degree, Universidad Tecnologica de Bolivar, Colombia), with active professional licenses in both fields. I work where electronics and mechanics me... Read more

Mechatronics Engineer and Electronics Engineer (dual degree, Universidad Tecnologica de Bolivar, Colombia), with active professional licenses in both fields. I work where electronics and mechanics meet: PCBs, the enclosures that house them, and getting the hardware to actually work once it is built. Most CAD designers do not understand the electronics going inside the part, and most electronics designers do not model the housing. WHAT I DO - PCB design: schematic capture, routing, Gerbers, BOM and manufacturing files - Hardware bring-up, testing and validation: sensors, actuators, firmware, communication links - ESP32 and Arduino firmware in C/C++: sensors, WiFi, Bluetooth, MQTT, TCP - 3D CAD: parts, enclosures and cabinets, delivered as native files, STEP and STL - Control systems: PID and fuzzy logic, with experimental validation - Technical documentation: interconnection diagrams, power budgets, test protocols EXPERIENCE At COTECMAR, a naval science and technology corporation, I spent six months on systems integration. I designed the communication architecture combining RS-422, TCP/IP Ethernet and radio modems; modelled the system cabinet in 3D at 1:1 scale, integrating 8 subsystems and migrating it from rack format to a portable enclosure; produced 6 electrical interconnection diagrams adopted as project reference documentation; and ran the laboratory test protocol validating the communication links. SELECTED WORK - SwarMind (final-year team project, 3 authors): a swarm of 10 autonomous robots. I designed the double-sided octagonal PCB through 4 iterations, integrating the ESP32, 8 perimeter infrared sensors, motor control and battery monitoring, replicated across all 10 units. I also ran the experimental validation: in a 2x2 m arena, 7 of the 10 robots converged on the target zone in about one minute. - MiniSumo competition robot: I designed the PCB and the autonomous and Bluetooth control system, and handled testing and validation of the sensors, actuators and control code. Second place, UTBot Robotic People Fest 2023. - Digital viscometer (team project): I produced the wiring diagram, implemented fuzzy-logic temperature control over Peltier cells via PWM, and redesigned the power stage after two thermal failures, converging on a topology with reversing relays and independent PWM regulation per cell. Validated viscosity curve from 25 to 50 C. HOW I WORK I deliver with technical documentation: power budgets, torque and autonomy calculations, design rationale and manufacturing-ready files. I am explicit about what I did personally and what was team work, and if something is not feasible I say so before we start, not at the end. Native Spanish. Certified C1 English (EF SET). Available immediately.

Electronic Hardware and Embedded Systems Engineer with 4+ years of hands-on experience in circuit design, PCB development, embedded firmware, IoT, RF/high-speed hardware, and power electronics. I have... Read more

Electronic Hardware and Embedded Systems Engineer with 4+ years of hands-on experience in circuit design, PCB development, embedded firmware, IoT, RF/high-speed hardware, and power electronics. I have worked on complete product-development cycles from schematic design and component selection through multilayer PCB layout, prototyping, debugging, validation, and manufacturing-ready delivery. I have delivered more than 150 PCB and hardware projects for manufacturing and product-development clients through freelance platforms such as ▒▒▒▒▒▒ and ▒▒▒▒▒▒, gaining strong experience in client communication, design requirements, production documentation, troubleshooting, and final delivery. My work includes STM32/ESP32 systems, industrial electronics, sensor interfaces, RS485/Modbus, wireless IoT devices, motor-control hardware, mixed-signal circuits, power-management boards, and RF/5G multilayer PCBs. I work with Altium Designer, KiCad, EasyEDA Pro, C/C++, STM32CubeIDE, PlatformIO, and LTspice. I can support complete hardware development, including schematic capture, PCB layout, BOM preparation, Gerber and drill files, CPL/Pick-and-Place files, DFM/DFT review, hardware bring-up, testing, debugging, and technical documentation. My focus is always on delivering reliable, manufacturable, and well-validated hardware that is ready for production.

I am a former Research and Development Engineer now currently doing consultancy at the same time specializing in Product Design and Robotics Engineering. Designing products from mechanical, Electronic... Read more

I am a former Research and Development Engineer now currently doing consultancy at the same time specializing in Product Design and Robotics Engineering. Designing products from mechanical, Electronics design, Programming until Graphic User Interface. I also do product animations as well. Aside from indicated projects on my portfolio, there are other projects that I made, but due to confidentiality reasons, I apologize for I could not show them in public.

I am a Robotics Engineer, Systems Architect, and CTO of General de Maquinaria Tecnoindustrial, with over 15 years of experience in applied engineering, machinery development, and industrial automation... Read more

I am a Robotics Engineer, Systems Architect, and CTO of General de Maquinaria Tecnoindustrial, with over 15 years of experience in applied engineering, machinery development, and industrial automation. I hold the Certified SOLIDWORKS Professional (CSWP) certification in Mechanical Design. I also passed Workana’s Design Patterns skills assessment on September 18, 2026, with a score of 90%. I design and build functional systems that connect mechanical design, electronics, control, and software. My experience includes machinery developed from scratch and retrofits that modernize existing equipment with new controls, connectivity, and monitoring. I can help you with: • Mechanical design in SolidWorks: parts, mechanisms, assemblies, and custom machinery; structural analysis, material selection, fit tolerances, and technical drawings for manufacturing or 3D printing. • Product development: translating concepts, sketches, and functional requirements into CAD designs, considering ergonomics, assembly, manufacturing processes, and maintenance. • Industrial automation and CNC retrofits: PLCs, HMIs, control panels, motor drives, sensors, and modernization of obsolete equipment. • Embedded systems and software: firmware for ESP32, STM32, and Arduino; data acquisition, communications, telemetry, and interfaces for operation and diagnostics. My hands-on manufacturing and field experience informs every design decision, from component fit and fabrication methods to installation, troubleshooting, and serviceability. I work with Python, C++, and industrial communications, including Modbus RTU/TCP, Wi-Fi, and LoRa. Earlier field work included industrial electrical installations, power systems, substations, transformers, control panels, and maintenance, with participation in NAIM and AIFA infrastructure projects. At Universidad Autónoma Chapingo, I developed solutions for sensors, monitoring, data processing, predictive models, and agricultural process optimization. In an electrical-panel manufacturing line, I identified bottlenecks and improved the workflow, increasing output from approximately one to three completed panels per person per week without increasing headcount. I define requirements, scope, and deliverables before development and can contribute from initial diagnosis and concept design through detailed engineering, fabrication, programming, testing, and commissioning. Explore my portfolio to see machinery, mechanisms, and control systems I have designed and built, connecting engineering decisions with practical results.

I'm an electronics engineer in Ho Chi Minh City, Vietnam, finishing an M.Eng. in electronics. I design PCBs in KiCad and do 2D CAD drafting, and I work in writing: clear questions up front, written de... Read more

I'm an electronics engineer in Ho Chi Minh City, Vietnam, finishing an M.Eng. in electronics. I design PCBs in KiCad and do 2D CAD drafting, and I work in writing: clear questions up front, written design notes, and files you can open and check yourself. What I can show you: - A four-layer RP2040 board with USB-C and a 90 ohm USB differential pair, delivered as JLCPCB fabrication files (Gerbers, drill, BOM, CPL), with a 2x2 panel and a DFM check against the fab's published limits. - A two-channel phantom-powered microphone preamp in KiCad, with the schematic checked against the TI datasheet and hand-routed inputs. - An open-source Eagle board migrated to KiCad 10, with every net and copper segment compared against the original. - 2D drafting delivered as DXF, DWG and PDF: a dimensioned mechanical part drawing, a 1:50 floor plan, and a scanned 1921 drawing redrawn to its printed dimensions and overlaid on the original. Good fits: schematic capture and layout for small and medium digital/analog boards, Eagle-to-KiCad conversions, fab-ready output and DFM review, BOM cleanup, and converting sketches, scans or PDFs into clean CAD drawings. I'm also a computer-vision engineer (Python, OpenCV, camera calibration, embedded Linux), so boards that carry cameras or sensors are familiar ground. What I won't claim: I have not taken a product through mass production or certification (FCC/CE/UL), and I do not stamp architectural or structural drawings.

I am an Embedded Systems and Electronics Engineer focused on PCB design, embedded hardware, firmware, motor control, and product prototyping. I design complete electronic systems from schematic and c... Read more

I am an Embedded Systems and Electronics Engineer focused on PCB design, embedded hardware, firmware, motor control, and product prototyping. I design complete electronic systems from schematic and component selection through PCB layout, manufacturing files, bring-up, testing, and firmware integration. My work includes STM32 and ESP32-based systems, high-current motor drivers, BLDC motor control, CAN/CAN-FD communication, USB, UART, sensor interfaces, power electronics, and IoT devices. I have hands-on experience designing and manufacturing multi-layer PCBs and debugging real hardware, not just simulations. I work with tools including KiCad, EasyEDA Pro, STM32CubeIDE, STM32CubeMX, and Arduino IDE. Services I can provide include: • Schematic design and circuit review • PCB layout and routing • BOM creation and component selection • STM32 and ESP32 hardware design • Embedded C/C++ firmware • CAN, CAN-FD, UART, SPI, I2C, USB and sensor integration • Motor driver and power electronics design • Design-for-manufacturing review • Prototype bring-up and debugging • Gerber, BOM and manufacturing file preparation I focus on practical, manufacturable designs with attention to reliability, component availability, thermal performance, current handling, signal integrity, and maintainability. I am also the founder of Eonix Systems, where I work on custom electronics, embedded systems, PCB design, and product development.

I help clients develop, verify, and improve engineering software and control systems. My background includes aerospace control systems engineering, MATLAB, Simulink modeling, verification and validati... Read more

I help clients develop, verify, and improve engineering software and control systems. My background includes aerospace control systems engineering, MATLAB, Simulink modeling, verification and validation, and embedded systems. I also bring hands-on marine electronics experience, including diagnostics and system integration. My work is structured, detail-oriented, and clearly communicated.

I am an Electronics and Embedded Systems Engineer specializing in PCB design and hardware development. I design reliable, efficient, and production-ready electronic systems—from concept and schematic... Read more

I am an Electronics and Embedded Systems Engineer specializing in PCB design and hardware development. I design reliable, efficient, and production-ready electronic systems—from concept and schematic design to PCB layout and prototyping. My experience includes working with microcontrollers, embedded firmware, and circuit design for a variety of applications. I focus on delivering high-quality designs that meet performance, cost, and manufacturability requirements. I can help with: Schematic design and circuit development PCB layout (2-layer to multi-layer) Embedded systems design and firmware integration Prototyping and testing Design for manufacturing (DFM) I am committed to clear communication, fast turnaround, and delivering solutions that work in real-world conditions.

I am a highly skilled Electronics and Embedded Systems Engineer with a specialized focus on high-speed PCB design and system-level hardware integration. My expertise lies in bridging the gap between c... Read more

I am a highly skilled Electronics and Embedded Systems Engineer with a specialized focus on high-speed PCB design and system-level hardware integration. My expertise lies in bridging the gap between complex digital logic and physical hardware, having successfully designed and prototyped sophisticated multi-processor platforms and IoT solutions. ​Core PCB Design Competencies ​My technical proficiency spans the entire hardware development lifecycle, from initial schematic capture to manufacturing and prototyping workflows. ​High-Speed Interface Design: I have extensive experience routing and integrating high-speed protocols including PCIe, DDR3/DDR4, USB 3.0, Gigabit Ethernet, and MIPI CSI/DSI. ​Multi-Processor Architectures: My work includes designing complex boards that integrate CPLDs (EPM240) for deterministic IO, STM32 microcontrollers, and RK3568 Linux SBCs. ​RF & Wireless Integration: I specialize in the integration of LoRa (SX1276), GPS, Wi-Fi, and BLE modules, ensuring optimal antenna performance and signal integrity. ​Design Tools: I am certified and proficient in industry-standard EDA tools, including Altium Designer, KiCad, and EasyEDA. ​Proven Project Impact ​Universal Control Platform (2025): Acted as the system architect for a high-performance board featuring Hailo-8 AI accelerators via PCIe and complex MIPI camera interfaces. ​IGURU Farm GPS Tag System: Led the electronics design for LoRa-enabled livestock tracking collars, managing everything from PCB layout and antenna integration to rigorous field testing. ​Payment & Security Systems: Developed robust hardware for NFC/RFID payment terminals, implementing secure transaction logging to SPI flash and reliable network uplinks. ​With a focus on reliability and innovation, I leverage advanced prototyping workflows including JLCPCB integration to deliver high-quality electronic systems for industrial, agritech, and security applications.